Emil Tveden Bjerglund

Ph.d.-student in Nanoscience

Aarhus University

Biography

I am a Ph.d.-student in Nanoscience at the Organic Surface Chemistry group at iNANO, Aarhus University. My current research is in electrochemical production and functionalisation of graphene for use in polymer composites. I also enjoy discussing Open Science, and try engage more open and clear communication of research and analysis methods.

As part of my PhD work I characterise nanomaterials using Energy-dispersive X-ray spectroscopy (EDX) in a Scanning Transmission Electron Microscope. We do this to obtain spatial information about the chemical composition of a sample on the nanoscale. Basically, an image is obtained by raster-scanning the electron beam and recording an X-ray spectrum in each position. This effectively gives a 3-dimensional dataset, where for each pixel a full spectrum is recorded. Since different elements emit X-rays at different energies, we can essentially make images of each element in a sample by extracting that part of the spectrum.

Currently in the Organic Surface Chemistry group, there are large variations between our group members when it comes to the tools used for data analysis. Some people feel most comfortable in spreadsheet programs such as Origin or Excel, while others rely on a mix of Matlab, R, Python or other tools. We use a lot of different experimental techniques in our research, and therefore generate data in a lot of different formats.